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New p-terphenyls from the fruiting bodies of Pseudomerulius curtisii and their antioxidant activity.
J Antibiot (Tokyo)
May 2016
Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Korea.
p-Terphenyls from the fruiting bodies of Paxillus curtisii and their antioxidant properties.
Bioorg Med Chem
July 2009
Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan, Jeonbuk, Republic of Korea.
New p-terphenyls, curtisians R (1)-V (5), have been isolated together with known compounds, curtisians E, I-P, and kynapcin-12, from the methanolic extract of the fruiting bodies of Paxillus curtisii (Paxillaceace). Their structures were established by various spectroscopic analyses including 1D- and 2D-NMR experiments, as well as high-resolution FAB-mass analysis. They exhibited significant protective effects against oxidative damage of supercoiled DNA and 2-deoxyribose by hydroxyl radicals generated from the Fenton reaction.
View Article and Find Full Text PDFp-Terphenyls from the basidiomycete Thelephora aurantiotincta.
Z Naturforsch C J Biosci
October 2003
Kunming Institute of Botany, the Chinese Academy of Sciences, Kunming 650204, PR China.
A new p-terphenyl, named aurantiotinin A (1), together with ganbajunin C (2) and atromentin (3) were isolated from the fruiting bodies of the basidiomycete Thelephora aurantiotincta Corner. Their structures were established by spectral (MS, IR, UV, NMR, H-H COSY, HMQC, HMBC measurement) and chemical methods.
View Article and Find Full Text PDFTwo novel phenylacetoxylated p-terphenyls from Thelephora ganbajun Zang.
Z Naturforsch C J Biosci
March 2002
Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming.
Two novel phenylacetoxylated p-terphenyl derivatives, namely ganbajunin F (6'-methoxy-2'-phenylacetoxy-3', 4, 4", 5'-tetrahydroxy- p-terphenyl), and ganbajunin G (5'-methoxy-2'-phenylacetoxy-3', 4, 4", 6'-tetrahydroxy-p-terphenyl), together with a known compound cycloleucomelone were isolated from the fruiting bodies of Thelephora ganbajun Zang. Their structures were established on the basis of spectral (MS, IR, NMR, HMBC, HMQC measurement) and chemical evidence.
View Article and Find Full Text PDFCurtisians A-D, new free radical scavengers from the mushroom Paxillus curtisii.
J Antibiot (Tokyo)
February 2000
Korea Research Institute of Bioscience and Biotechnology, Taejon.
In our continuous investigation for free radical scavengers from extracts of fruit body of basidiomycetes, we have isolated four new p-terphenyl compounds, designated as curtisians A-D, from the methanolic extract of the fruit body of Paxillus curtisii. These compounds were isolated by silica gel and Sephadex LH-20 column chromatographies, preparative-TLC and HPLC, consecutively. The structures of curtisians were assigned as p-terphenyls with substituents of acetyl, benzoyl, phenylbutyryl, 3-hydroxybutyryl and 3-acetoxybutyryl.
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